It seems very early to be starting this topic but all but 1 seat has been locked in for 2018 with only a few numbers & sponsors to be locked in. The only seat remaining at this point is at Tekno where Jack Le Brocq is thought to be a shoe-in with GoGetta backing. Below is how the 2018 Supercars grid is shaping up:

As can be seen above, there are quite a few changes in 2018 & a high turnover of drivers. Veterans Jason Bright & Todd Kelly have hung up their helmets and James Moffat & Dale Wood are no longer full-time. 5 full-time rookies in Richie Stanaway, James Golding, Jack Le Brocq, Todd Hazlewood & Anton De Pasquale have now joined the ranks. Andre Heimgartner also rejoins the field after a year on the side-lines. Prodrive Racing Australia, Mobil 1 HSV Racing & Lucas Dumbrell Motorsport have all gone through a re-brand (& ownership changes for two) becoming Tickford Racing, Walkinshaw Andretti United & 23Red Racing respectively. A completely new team to the main-game in Matt Stone Racing has also made the step-up from Super2, leasing an REC owned by Jason Bright & sourcing a car from DJRTP. Simona De Silvestro will have had a full season under her belt & after her impressive weekend at Newcastle it will be interesting to see if she can raise the bar on her rookie season. Finally, all the Holden teams are set to debut the Triple 8 designed ZB Commodore.

With such a changed grid, 2018 promises to be the most highly competitive season Supercars has had for quite a few years.

2018 Supercars grid updated to include Autobarn Lowndes Racing name at Triple 8 & the speculation that Mega Bull Fuels will move to Winterbottom's car as naming rights sponsor with Ice Break returning to Tickford on Stanaway's car. It's not yet known if Bottle-O are leaving for to another team or out of the sport completely.